KR-2026 is suitable for high temperature dyeing of polyester microfibers, polyester/spandex microfibers and polyester/cellulose blends, etc. It is also suitable for the dyeing of polyester tightly wound or high-density cylindrical yarns; it is especially recommended to solve the problem of color stains and color dots caused by poor dispersion of disperse dyestuffs like high fastness brilliant blue, turquoise blue and other disperse dyestuffs as well as the sensitivity to water, etc., and it won't lead to the darkening of colors even if it is increased in dosage.